80720360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15173}}^1$

素因数の和:15210

約数の個数: 64

約数和(自身を含む): 218505600

約数和(自身を除く): 137785240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 15173, 30346, 60692, 75865, 106211, 121384, 151730, 212422, 288287, 303460, 424844, 531055, 576574, 606920, 849688, 1062110, 1153148, 1441435, 2018009, 2124220, 2306296, 2882870, 4036018, 4248440, 5765740, 8072036, 10090045, 11531480, 16144072, 20180090, 40360180, 80720360]

約数ペア:

[(1, 80720360), (2, 40360180), (4, 20180090), (5, 16144072), (7, 11531480), (8, 10090045), (10, 8072036), (14, 5765740), (19, 4248440), (20, 4036018), (28, 2882870), (35, 2306296), (38, 2124220), (40, 2018009), (56, 1441435), (70, 1153148), (76, 1062110), (95, 849688), (133, 606920), (140, 576574), (152, 531055), (190, 424844), (266, 303460), (280, 288287), (380, 212422), (532, 151730), (665, 121384), (760, 106211), (1064, 75865), (1330, 60692), (2660, 30346), (5320, 15173)]